Anonymous - s.n. -
Berlandier - 2555 - United States
Blankinship - s.n. - United States
Bull - 407 - United States
Bush - 1408 - United States
Bush - 153 - United States
Bush - 15757 - United States
Bush - 273 - United States
Clemens - 1020 - United States
Clemens - 11821 - United States
Conyza canadensis
Davidse - 39025 - United States
Eggert - s.n. - United States
Ferris - 3060 - United States
Gregg - 136 - Mexico
Hinton - 18761 - Mexico
Hinton - 19515 - Mexico
Hinton - 19568 - Mexico
Hinton - 20517 - Mexico
Hinton - 21395 - Mexico
Hopkins - 1017 - United States
Jermy - s.n. - United States
Kotschy - s.n. -
Lindheimer - 626 - United States
Lott - 4649 - United States
Miller - 20 - United States
Muller - 8195 - United States
Nixon - 69 - United States
Pudig - 46375 - United States
Reverchon - 435 - United States
Reverchon - s.n. - United States
Scur - 283 - Brazil
Scur - 481 - Brazil
Stevens - 2272 - United States
Stevens - 2865 - United States
Stone - 3085 - United States
Tharp - 203 - United States
Tharp - s.n. - United States
Tolstead - 7396 - United States
Warner - s.n. - United States
Wasum - 2608 - Brazil
Waterfall - 6623 - United States
Waugh - s.n. - United States
Wilkinson - 109 - United States
Wilkinson - 24 - United States